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  Copyright (c) 2016 Jean-Marc VIGLINO, 
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  <title>ol-ext: Layerswitcher</title>
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  <meta name="description" content="A simple layerswitcher popup for OL3." />
  <meta name="keywords" content="ol3, layer, layerswitcher, control, popup, jQuery" />

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  <a href="https://github.com/Viglino/ol-ext" class="icss-github-corner"><i></i></a>

  <a href="../../index.html">
    <h1>ol-ext: LayerSwitcher control</h1>
  </a>
  <div class="info">
    Add a simple popup layer switcher to the map. Only first level is enable in the popup. 
    <ul>
    <li>
    The <i>title</i> or <i>name</i> layer's property is used to named the ol.layer in the switcher.
    </li>
    <li>
    It shows use of the <i>displayInLayerSwitcher</i> layer's property to cause it to not display in the LayerSwitcher
    </li>
    <li>
    The <i>baseLayer</i> layer's property manage exclusive visibility on layers (only one base layer is shown at a time).
    </li>
    </ul>
  </div>

  <!-- DIV pour la carte -->
  <div id="map" style="width:600px; height:400px;"></div>
  
  <script type="text/javascript">

  // Two base layers
  var ortho = new ol.layer.Geoportail({
    baseLayer: true,
    layer: 'ORTHOIMAGERY.ORTHOPHOTOS'
  });
  var mapign = new ol.layer.Geoportail({
    baseLayer: true,
    visible: false,
    layer: 'GEOGRAPHICALGRIDSYSTEMS.PLANIGNV2'
  });
  var osm = new ol.layer.Tile({
    title: "OSM",
    baseLayer: true,
    source: new ol.source.OSM(),
    visible: false
  });

  // GeoJSON layer with a preview attribute
  var vectorSource = new ol.source.Vector({
    url: '../data/fond_guerre.geojson',
    projection: 'EPSG:3857',
    format: new ol.format.GeoJSON(),
    attributions: [ "&copy; <a href='https://data.culture.gouv.fr/explore/dataset/fonds-de-la-guerre-14-18-extrait-de-la-base-memoire'>data.culture.gouv.fr</a>" ],
    logo:"https://www.data.gouv.fr/s/avatars/37/e56718abd4465985ddde68b33be1ef.jpg" 
  });

  var vector = new ol.layer.Vector({
    name: '1914-18',
    preview: "http://www.culture.gouv.fr/Wave/image/memoire/2445/sap40_z0004141_v.jpg",
    source: vectorSource
  });


  // The map
  var map = new ol.Map({
    target: 'map',
    view: new ol.View({
      zoom: 6,
      center: [173664, 6166327]
    }),
    layers: [ortho, mapign, osm, vector]
  });

  map.addControl(new ol.control.LayerPopup())

  </script>
  
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